Bobbin-winder



(No Model.)

A. V. ABERCROMBIE.

BOBBIN WINDER.

No. 332,771. Patented Dec. Z2, 1885.

-llf- @Mayu l UNITED STATES PATENT OFFICE. l

ALEXANDER V. ABERCROMBIE, BRIDGEPOR'I, CONNECTICUT.

BO BBIN-WINDER.

SPECIFICATION forming part of Letters Patent No. 332,771, dated December22, 1885.

Application filed March 9, 1885. Serial No. 158,170. (No model.)

'To aZZ whom it may concer-n:

Be it known that I, ALEXANDER V. ABER- CROMBIE, a citizen of the UnitedStates, and a resident of Bridgeport, in the county of Fairfield andState of Connecticut, have invented certain new and useful Improvementsin Bobbin-WVinders, of which the following isaspecification.

My invention relates to automatic bobbinwinders for sewing-machines, andis an improvement on the device for which Letters Patent were granted tome December 16,1884, and numbered 309,371.

The object of my invention is to provide means whereby the winding arboror spindle holding the bobbin is brought to a standstill after thebobbin has been lled.

'Io more clearly understand my invention, reference is had to thedrawings, and to the figures and letters of reference marked thereon,forming part of this specication.

Figure I represents a view in perspective of the device, and also asection of a sewingmachine table. Fig. II represents a side elevation ofthe spindle-frame and sectional View of the supporting-standard. Fig.III is a side elevation of the device. Figs. IV andVare modifications.

Its construction and mode of operation are as follows: A, section oftable; B, supportingstandard; C, movable spindle-frame; D, shank of saidframe; E, bobbin; F, driving-pulley; a, bobbin-spindle; b, driving-belt;c, threadcutter; d, finger; c, brake; f, guide pin; g, guide-pin slot;71 spring; t', actuating-pin; j, notch in the cutter for same.

In Fig. I is represented the device adjusted for working and theoperation of winding the bobbin in progress. The movable spindleframe Chas the shank D, which operates in the hollow standard B, as will beseen more clearly in Fig. II. At the bottom of said standard is therecess m, made sufficiently large to admit of the controlling-spring hbeing coiled around the shank D. Said spring abuts against the shouldern of the standard B and the enlarged end o of the shank D. The frame Cis represented elevated and spring h compressed, which will at theproper 5o time cause the frame C to forcibly descend.

` The revolving spindle a, on which the bobbin E is placed to be wound,extends through the spindle-frame C, working freely therein. On the endof spindle a is the pulley F, connected by belt b with thedriving-pulley, which (though not shown) is supposed to be situatedbelow the bed on the main shaft.

The cutter c, (see Fig. 1,) with finger d and brake e, is represented inone piece, and is attached to standard B by screw p and swinging freelythereon. The edge of the cutterblank immediately above the screw p isthe cam-shaped profile q, which engages with the pin i of frame C.

When necessary to operate the device, the thread Z is brought from thedelivery-spool (not shown) to the bobbin E. The cutter c is raised,andby the action of cam q, engaging the pin t', the frame Cis alsoelevated, compressing spring h, as before mentioned. The cutter israised until pin 'i finds a lodging place at the mouth of the slot j.The finger d is placed between the walls of the bobbin, and when thesame is filled the pressure of the accumulating thread on said fingerwill disengage notch j from pin i, and by means of said pin andcompressed spring h the cutter will be carried downward with forcesuflicient to sever the delivery-thread. Its downward movement issuddenly arrested by the brake c engaging with belt b. (See Fig. III.)The downward movement of frame C slackens the belt, and the office ofthe brake is to grip and hold the same, thus placing spindle c in astate of absolute rest, the object of which is to avoid the wear whichcontinuous running would subject it to.

The exact arrangement of the cutter and brake may be somewhat modified.For in stance, the cutter c, finger d, and brake care representedblanked in one piece; but the brake e may form a separate attachment, asshown at Figs. IV and V, which view represents the upper section of aside and end elevation through the dotted line x of Fig. III. The brakee, as shown, has the base r, forming part of the same, which is securedto the standard B by the screw s. The elongated slott in the base renables the same to be raised and lowered, as the case may be, toproperly udjust it in relation to the belt b. In place of cutter c,having its downward movement arrested by IOO the brake e engaging withthe belt b, as before mentioned, the projection u, (see Fig. IV,) inconjunction with pin z', serves as a stop to arrest the cutter after ithas descended far enou g so as to be well out of the way.

Attaching the brake e separately, as shown, will necessitate a change inthe position of the guide-pin j', as seen at Fig. V. Its position,however, is immaterial so long as it does not interfere with the workingof the other parts.

Any other suitable device for holding frame C in position would answerequally aswell.

It is not necessary in constructing the device that the exactarrangement, as shown, of the several parts be carried out. Forinstance,

in operating the frame O, a different style of spring, or onedifferently situated, could be used to answer the purpose; also, theca1nlike projection on the cutter, in conjunction with pint' of theframe, may be modiiied without departing from the spirit of myinvention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a device for winding bobbins, the cornbination,with a movablecutter having a brake,

of a movable spindle-carrying frame holding the bobbin-spindle, and abelt-pulley on said spindle, said spindle-carrying frame actuated by aspring, and adapted by means of said by such action of said frame andspring cause the brake to grip and hold the belt in a state of rest,substantially as set forth.

2. In a device for winding bobbins, the combination, substantially asset forth, of the movable cutter c, havingbrake e, finger d, and camlikeprojection g, with the movable spindlecarrying frame C, having pin i toengage the cam-like projection of the cutter, revolving spindle a, andbelt-pulley F, said spindle adapted to hold the bobbin ina Xed positionin relation to nger d of the cutter, that the accumulating thread on thebobbin will release the cutter, and by means of said frame and springcause the cutter to descend and sever the delivery thread, and by meansof said brake grip and hold the belt in a state of rest.

3. The combination, substantially as described, of the movablespindle-carrying-frame G, actuated by a spring, pin fi, and standard B,with the cutter c, lhaving cam-like projection q, finger d, and notch j.

Signed at Bridgeport, in the county of Faireld and State of Connecticut,this 21st day 0f February, A. D. 1885.

A LEXANDE R V. ABERC ROMBI E.

Vitnesses:

GEo. E. GURTIs, Guns. E. WILMoT.

